I have noticed there is some confusion over how fly swaps work so this is an explanation.

1, select the number of people that you wish to have in the swap or join a swap that has the right amount of people to suit you. 10 is a good number any more and the tying gets a bit boring.
2, select type of flies to be tied, or pick an open choice swap of say wets, lures,drys
and so on.
3, tie the selected amount of the chosen fly ie- 10 Montana's or 10 buzzers
4, PM swap organiser for his address
5, send your tied flies and a sae to the person running the swap, you may wish to include a tying description and materials used but this is rare.
6, your flies arrive at swap organisers, who then puts 1 fly of each of the tyers into your sae and sends it back to you.
7, you receive the flies, and feel a little embarrassed that your flies are put to shame by the others

(only joking)
Enjoy your swaps